2 ISPs and multple VLANS (routing question)

RouterOS Beginner Basics
1

Hi,
I have 2 ISP’s, so also 2 gateways.
I have multiple VLANS (with each vlan its own subnet). Now I want to split the internet traffic.
For example:
VLAN1, VLAN2 and VLAN3 (172.16.0.0/25, 172.16.0.128/25 and 172.16.1.0/24) Use ISP1 for its internet traffic
VLAN4, VLAN5, and VLAN6 (172.16.2.0/24, 172.16.3.0/24 and 172.16.4.0/24) use ISP2 for its internet traffic.

How can I do this?

2

There were two seperate presentations at the MUM conference I attended in 2012…
It’s a very popular topic.

These are both excellent presentations on the topic and should be what you need to accomplish your goal:

http://mum.mikrotik.com/presentations/US12/steve.pdf
http://mum.mikrotik.com/presentations/US12/tomas.pdf

3

Thanks for the links.
Is this allso usable if the 2 ISP’s are not connected to the same router in the network?

I have one mikrotik router in the network.
On Ether1 there is a ISP connected but the other ISP is connected to a switch somewhere else in the network.

4

If it’s a switch - then you should be fine. That’s just a layer 2 device.
If it’s another router, then you can still do the job, you would simply remove NAT but keep the state tracking and policy routing.

5

I think you need tag the ip of your servers on which VLAN you want to connect. For getting clear picture on it you can use any dissertation paper about this topic to understand more.